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Fixed parsing of function pointers.

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This commit is contained in:
the_fiddler 2009-08-11 18:05:43 +00:00
parent be52c2776b
commit f7b9a75b6e
1 changed files with 25 additions and 4 deletions
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29
Source/Converter/CHeaderToXML/ESCLParser.cs
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@ -190,6 +190,21 @@ namespace CHeaderToXML
string funcname = null;
GetFunctionNameAndType(words, out funcname, out rettype);
if (funcname == "BufferData")
Debugger.Break();
var paramaters_string = Regex.Match(line, @"\(.*\)").Captures[0].Value.TrimStart('(').TrimEnd(')');
// This regex matches function parameters. The first part (before the '|') matches parameters of the following formats:
// '[return type] [parameter name]', '[return type] * [parameter name]', 'const [return type]* [parameter name]'
// where [parameter name] can either be inside comments (/* ... */) or not.
// The second part matches functions pointers in the following format:
// '[return type] (*[function pointer name])([parameter list]) [parameter name]
// where [parameter name] may or may not be in comments.
var get_param = new Regex(@"((const\s)?\w+\s*\**\s*(/\*.*?\*/|\w+(\[.*?\])?) | \w+\s\(\*\w+\)\(.*\)\s*(/\*.*?\*/|\w+)),?", RegexOptions.IgnorePatternWhitespace);
var ars = get_param.Matches(paramaters_string).OfType<Match>().Select(m => m.Captures[0].Value.TrimEnd(','));
var fun =
new
{
@ -199,13 +214,17 @@ namespace CHeaderToXML
Extension = GetExtension(funcname),
Profile = String.Empty,
Parameters =
from item in line.Split("()".ToCharArray(), StringSplitOptions.RemoveEmptyEntries)[1].Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries)
from item in get_param.Matches(paramaters_string).OfType<Match>().Select(m => m.Captures[0].Value.TrimEnd(','))
//paramaters_string.Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries)
let tokens = item.Trim().Split(' ')
let param_name = (tokens.Last().Trim() != "*/" ? tokens.Last() : tokens[tokens.Length - 2]).Trim()
//let param_type = (tokens.First().Trim() != "const" ? tokens.First().Trim() : tokens.Skip(1).First().Trim())
let param_type = (from t in tokens where t.Trim() != "const" && t.Trim() != "unsigned" select t).First().Trim()
let is_function_pointer = param_name.StartsWith("pfn")
let param_type =
is_function_pointer ? "IntPtr" :
(from t in tokens where t.Trim() != "const" && t.Trim() != "unsigned" select t).First().Trim()
let has_array_size = array_size.IsMatch(param_name)
let indirection_level =
is_function_pointer ? 0 :
(from c in param_name where c == '*' select c).Count() +
(from c in param_type where c == '*' select c).Count() +
(from t in tokens where t == "***" select t).Count() * 3 +
@ -217,7 +236,9 @@ namespace CHeaderToXML
select new
{
Name = (has_array_size ? array_size.Replace(param_name, "") : param_name).Replace("*", ""), // Pointers are placed into the parameter Type, not Name
Type = (tokens.Contains("unsigned") && !param_type.StartsWith("byte") ? "u" : "") + // Make sure we don't ignore the unsigned part of unsigned parameters (e.g. unsigned int -> uint)
Type =
is_function_pointer ? param_type :
(tokens.Contains("unsigned") && !param_type.StartsWith("byte") ? "u" : "") + // Make sure we don't ignore the unsigned part of unsigned parameters (e.g. unsigned int -> uint)
param_type.Replace("*", "") + String.Join("", pointers, 0, indirection_level), // Normalize pointer indirection level (place as many asterisks as in indirection_level variable)
Count = has_array_size ? Int32.Parse(array_size.Match(param_name).Value.Trim('[', ']')) : 0,
Flow = param_name.EndsWith("ret") ? "out" : "in"